package com.atguigu.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

/**
 * @ProjectName: gulimall
 * @Package: com.atguigu.common.valid
 * @ClassName: ListValueConstraintValidator
 * @Author: 伍炜
 * @Description:
 * @Date: 2022-04-28 10:08
 * @Version: 1.0
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {


    private Set<Integer> set = new HashSet<>();
    //初始化方法
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals = constraintAnnotation.vals();
        for(int val : vals){
            set.add(val);
        }
    }

    //判断是否校验成功

    /**
     *
     * @param value 需要校验的值
     * @param context
     * @return
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        //set里面包含规定的值
        if(set.contains(value)){
            return true;
        }
        return false;
    }
}
